<?php

/*
 * Pickle
 *
 *
 * @license
 *
 * New BSD License
 *
 * Copyright © 2015-2015, Pickle community. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Hoa nor the names of its contributors may be
 *       used to endorse or promote products derived from this software without
 *       specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

namespace Pickle\Package\PHP\Util;

use Exception;
use Pickle\Package;
use RuntimeException;

class PackageJson
{
    public static function readPackage($path, $noconvert)
    {
        $jsonLoader = new Package\Util\JSON\Loader(new Package\Util\Loader());
        $package = null;

        if (file_exists($path . DIRECTORY_SEPARATOR . 'composer.json')) {
            $package = $jsonLoader->load($path . DIRECTORY_SEPARATOR . 'composer.json');
        }

        if ($package === null && $noconvert) {
            throw new RuntimeException('XML package are not supported. Please convert it before install');
        }

        if ($package === null) {
            try {
                $pkgXml = new PackageXml($path);
                $pkgXml->dump();

                $jsonPath = $pkgXml->getJsonPath();

                $package = $jsonLoader->load($jsonPath);
            } catch (Exception $e) {
                /* pass for now, be compatible */
            }
        }

        if ($package === null) {
            /* Just ensure it's correct, */
            throw new Exception("Couldn't read package info at '{$path}'");
        }

        $package->setRootDir(realpath($path));

        return $package;
    }
}

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